'Supports' in the Bible

After hoisting the skiff [on board], they used support lines [for frapping] to undergird and brace the ship’s hull; and fearing that they might run aground on the shallows of Syrtis [off the north coast of Africa], they let down the sea anchor and lowered the sails and were driven along [backwards with the bow into the wind].

do not boast over the [broken] branches and exalt yourself at their expense. If you do boast and feel superior, remember that it is not you who supports the root, but the root that supports you.